One problem related to air bag not deploy has been reported for the 2016 BMW 528. The most recently reported issues are listed below.
Takata recall,, 12-20-2017 I was in a collision. My vehicle rear ended a vehicle while trying to stop. I was alone in my vehicle. The driver side steering wheel and knee airbags deployed. The passenger front and rear side curtain airbags deployed. The driver side front and rear side curtain airbags failed to deploy. BMW upon my request and complaints had the vehicle checked my one of their engineers. Who I was told said that the driver side curtain airbags should not have deployed. When I asked them why would the passengers if I was alone and was told OH that's a safety precaution don't worry about it.